Open Access
Table 1
Number of analysed objects and number of publications concerning particular subterranean habitats. In some papers, results obtained from two or three different habitats were included.
| Habitat | Number of studied objects | Number of publications |
|---|---|---|
| Wells | circa 70 | 7 |
| Caves | 31 | 24 |
| Interstitial waters | 46 | 8 |
| Water works | 2 | 2 |
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